Table 2.

Analytical performance and analyte determination in pharmaceuticals by the proposed method (n = 5).

Figures of merit	Vitamin A	Vitamin C	Rose Bengal
Calibration equation [I= intensity, c = concentration (μg/mL)]	I = 67.88c + 2.62	I = 70.15c + 2.91	I = 47.98c + 1.71
Linear range (μg/mL)	0.05–15	0.01–20	0.1–50
Limit of detection (μg/mL, S/N = 3)	0.008	0.005	0.05
Sample throughput	70	70	30
Pharmaceutical formulations	Proposed method results/ (labeled values) (μg)	Proposed method results/ (labeled values) (mg)	Proposed method results/ (labeled values) (%)
Capsules	210 ± 3/(200)	—	—
Chewable dragee	9975 ± 5/(9900)	97 ± 6/(100)	—
Eye drops (0.6 mL)	—	—	1 ± 0.1/(1)
Injections	3378 ± 4/(3300)	—	—
Tablets	—	509 ± 5 mg/(500)	—